LCM of 455, 117, 338 is________?
Correct answer: B. 106470
- A. 10670
- B. 106470
- C. 104670
- D. 107470
Explanation
Factor the numbers: 455 = 5 x 7 x 13, 117 = 3^2 x 13, and 338 = 2 x 13^2. Their LCM is 2 x 3^2 x 5 x 7 x 13^2 = 106470. The likely distractor is 10670, which omits a factor and therefore is not divisible by all three numbers.
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